We look at the division of 684660 by 15 
We're looking to find how many times 15 goes into 684660.

Moving on to step 1:
15 goes into 6 0 times with a remainder of 6.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 6, we end up with 6.
Include the next digit (8) from the dividend after 6, then repeat: 68 / 15

On to step 2:
68 divided by 15 is 4 with a remainder of 8.
The number 4 becomes the next digit in our result. 
Result so far: 4.0
The remainder is 8 after subtracting 60 from 68.
Fetch the next digit (4) from the dividend, attach it to 8 and continue: 84 / 15

Going ahead to step 3:
The number 15 fits into 84 5 times, leaving a remainder of 9.
Write down 5 as next digit of the result. 
Result so far: 45.0
If we take 75 away from 84, we end up with 9.
Bring next digit (6) of the dividend behind the 9 and repeat the process: 96 / 15

Going ahead to step 4:
96 divided by 15 is 6 with a remainder of 6.
Write down 6 as next digit of the result. 
Result so far: 456.0
The remainder is 6 after subtracting 90 from 96.
Fetch the next digit (6) from the dividend, attach it to 6 and continue: 66 / 15

Step 5:
When dividing 66 by 15, we get 4 with a remainder of 6.
The next digit of our result is 4. 
Result so far: 4564.0
If we take 60 away from 66, we end up with 6.
Grab the next digit (0) from the dividend, add it to 6, then carry on: 60 / 15

Advancing to step 6:
The number 15 fits into 60 4 times, leaving a remainder of 0.
The number 4 becomes the next digit in our result. 
Result so far: 45644.0
If we take 60 away from 60, we end up with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Advancing to step 7:
If we divide 0 by 15, we get 0 and a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 45644.0
If we subtract 0 from 0, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Going ahead to step 8:
15 goes into 0 0 times with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 45644.0
Subtracting 0 from 0 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Our division results in 45644.0 with a remaining 0.0.